You need to have a shop mic them (or you can do it yourself if you
can measure them accurately) and see if they are put of round or
taper toward the ends. You don't say anything about the main
journals, but they need to be checked as well. You may get away with
a polish only or you may need to resize to the next size bearing, but
the only way to tell is by doing the above. It would probably be
wise to have the crank magna-fluxed (checked for cracks) as well.
Gerard
At 11:08 PM -0700 8/3/04, the flashfire wrote:
>speaking of, this is as good as a place as any to ask about engine
>internals....long story short i ran the motor low on oil and it
>developed a nasty knock over 1500rpm.
>
>so on a related note we got the motor out and
> got her mounted and flipped on a stand and got the guts out. the
>bearings are trash, no doubt, every single one is worn in a different
>way. 2 &3 are missing the internal finish which i guess must be chrome
>as im finding flecks all over the engine. 4 was mangled terribly bad.
>1 was worn narrower, and i believe its the culprit of the knocking.
>rather than having a nice round cylinder the two bearing halves were
>worn to a taper on both ends.
>
>so f-it the bearings are gone, sayonara.
>
>the crank...
>
>the crank looks very good, 2, 3, 4 are very polished and look like i
>would expect them to. the edges havent been gouged, they look great.
>1 on the other hand does have evidence of damage, but what im hoping is
>just superficial damage. there are fine grooves cut the circular way
>around the journal, but they look to be almost microscopic. i can see
>them, but i can not feel them with a finger or a fingernail. what do i
>do?
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